Fire extinguisher



Sept. 19, 1933. M. HERZSTEIN ET AL FIRE EXTINGUISHER Filed March 28, 1951 gwvenl ovi Max He rzsieiw,

Patented Sept. 19, 1933 FIRE EXTINGUISHER. p Max Herzstein and Robert H. Porter, San Antonic, Tex.;, said Her Porter zstein' assig nor to said Application March 28, 1931. Serial No. 526,0871

4 Claims. (01. 169 -26) This invention relates to fire extinguishers and more particularly to that type wherein a frangible container drops when released from its support and upon breaking releases a liquid which gasifies and smothers the flame.

One of the objects of the invention is to provide a simple and practical type of releasable supporting device which adequately sustains the liquid container under normal conditions, but -which upon the occurrence of fire automatically permits the container to drop and strike the fioor or other surface to thereby crash and release its contents. In that connection theinvention contemplates a circular band which may be made from stamped sheet material or the like and so assembled that the parts of the band may' readily separate under the heat of fire to release the container.

Devices heretofore employed for this general purpose have utilized spring wire and the like, and in many instances have required numerous parts such as a bracket and separate arms con nected by a fusible link, but the objection to these devices is, not only their expense, but also the difiiculty or nuisance in assembly and installation. The present invention aims to overcome this objection by providing a device which may be handled as a single unit, while at the same time not in any way interfering with its facility of attachment to a support within a building.

With the above and other objects in view which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment of the invention is shown. in the accompanying draw- ;ing in which:

Figure 1 is a perspective view of the support forming a part of the invention.

Figure 2 is a vertical cross sectional view of the releasable support with the container shown in two positions of use. 7

Figure 3 is a horizontal cross sectional view of the support. I

Similar reference characters designate corresponding parts throughout the several figures of the drawing.

Referring to the accompanying drawingit will be observed that the present device includes in its organization a releasable support designated generally as S and a frangible container C.

The releasable supporting device S is preferably in the form of a circular band or strip; consisting of the parts or sections 1' and 2 whose ends overlap as indicated at- 3 and are united by a fusible solder 4. Thus, in its usable condition the device essentially ;,consists of a single supporting band which may be flared or enlarged at its front end as indicated at- 5 and transversely bowed as indicated as 6 to provide, a socket for the bulbous container 0. Thepart 5 may be provided with an eye 5a which is in tended to receive the reduced end portion C of the container when desired, as shown in Fig. 2.

One of the parts of the band, as for example the rear part 1 may be providedwith the offset ears 7 which are perforated as indicated at 8 to receive fastenings for facilitating attachment of the band to a wall or other support.

Normally the band S carries the frangible liquid container C; either in the full line position shown in Figure 2 or the dotted line position and, under the heat of fire, either one or both of the fusible connections 4 may be melted to thereby cause relative separation of the parts 1 and 2. When the solder breaks and the overlapping edges separate, the released container ,80 C will fall under its ownweight 1 and crash against any obstacle which it meets. As the container C breaks, the liquid extinguishing element therein gasifies under contact with the air and forms an extinguishing blanket for the flames.

As the band S may readily be made from stamped sheet material it is economical to produce and its consequential loss by fire is immaterial. Furthermore due to the fact thatthe band normally is an integral factor in the support of the container C there are no loose or pivoted parts which are likely to become dis.- engaged to prevent accidental release or displacement of the container.

Without further description it is thought that the features and advantages of the invention will be readily apparent to those skilled in the art, and it will of course be understood that changes in the form, proportion and minor de- 0 tails of construction may be resorted to, without departing from the spirit of the invention and scope of the appended claims.

Weclaimz- ,1. A releasable support for frangible container fire extinguishers comprising a plural part holder one part ofwhich is adapted to be fastened to' a support, integral formations on said part to extend partially around an extinguisher to constitute a fixed seat forming bracket for the extinguisher, said holder parts being connected together and collectively constituting the support, and connections between said holder parts fusible under a temperature corresponding to a fire condition, the aforesaid integral formations of said first mentioned holder part being of a length'to extend less'than 180 around an extinguisher whereby an extinguisher held by the support is released upon fusion and consequent extinguisher held ,by the support is released upon fusion and consequent release of the'connections between the band parts.

3. A releasable support for frangible container fireextinguishers comprising a two-part band, one

one-piece part of which is formed to constitute a bracket for attachment to a support and to extend partially around an extinguisher, the other band part cooperating with said first mentioned band part to provide a continuous holder band for an extinguisher, and connections between said band parts fusible at a temperature corresponding to a fire condition, the first mentioned band part being of a length to extend less than 180 around an extinguisher whereby an extinguisher held by the support is released upon fusion and consequent release of the connections between the band parts, the second mentioned "band part being of spherical cross section to embrace and hold a bulb-like extinguisher.

4. A releasable support for frangible container fire extinguishers comprising a sheet metal bracket to be fastened to a support, arms integral with said bracket extending from opposite sides thereof, respectively, and cooperating with the bracket to provide a fixed one-pieceeseat for the extinguisher, a sheet metal band for cooperation with said bracket and said arms to completely embrace the extinguisher, and connections between the ends of said arms and the ends of said band fusible at a temperature cor responding to a' fire condition, said arms being of a length to extend less than 180 around the extinguisher whereby the extinguisher is rereleased upon fusion and consequent release of said fusible connections.

MAX HERZSTEIN.

ROBERT H. PORTER. 

